"Locate and identify website visitors by IP address Ipstack offers one of the leading IP to geolocation APIs and global IP database services worldwide. IPv4 and IPv6 Data The API covers over 2 million unique locations in more than 200.000 cities around the world. Rock-Solid Sources Years of partnership with large ISPs ensure accurate and consistent data any day of the year. Powerful & Scalable From 100 requests a month to a million requests a day — our infrastructure has got you covered. World-Class Documentation An extensive API documentation and a quickstart guide will get you up and running within minutes. Bank-Grade Security All data sent to and processed by the ipstack API is secured via 256-bit SSL encryption (HTTPS). JSON or XML Based on your choice
the ipstack API can deliver results in JSON or XML format. Ipstack offers up to 5 modules depending on your plan: Location Module
Time zone module
Security Module. More details on the modules on the website."